i'm jim cramer and i will see you tomorrow. >>> good evening, everyone. i'm larry kudlow. this is "the kudlow report." another day has passed but we have very few solid answers about the boston marathon bombing. we do now know what kind of devices were used. after that, the new information is few and far between. we are going to go to boston for a live update. >>> the stock markets had a very solid bounce back today after yesterday's big selloff. gold also had a positive day. but i believe the plunge in gold is a very good sign for the economy, just as it was in the '80s and '90s. in other words, some optimism. and senator marco rubio unveils the new immigration reform bill today. here's the key point. when we look at the benefits and score them dynamically, immigration reform will be a huge boost to the economy. "the kudlow report" begins right now. >>> first up tonight, president obama will travel to boston thursday for an interfaith service with bombing victims. more than 24 hours after two bombs ripped through marathon crowds killing three, wounding 170 others, investi